.product {
  width: 100%;
  box-shadow: 0 -5px 5px 0 rgba(0, 0, 0, 0.05);
  overflow: hidden;
}
.product .pro-top {
  text-align: center;
  margin-bottom: 40px;
}
.product .pro-top h4 {
  margin-top: 80px;
  font-size: 32px;
}
.product .pro-top div {
  margin-top: 20px;
  font-size: 24px;
}
.product .pro-main {
  max-width: 1200px;
  padding-left: 20px;
  margin: 0 auto;
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
  flex-wrap: wrap;
  padding-bottom: 100px;
}
.product .pro-main li {
  width: 32%;
  display: flex;
  justify-content: space-around;
  align-items: center;
  max-height: 400px;
}
.product .pro-main li:nth-child(n + 4) {
  margin-top: 2%;
}
.product .pro-main li:nth-child(3n-1) {
  margin-left: 2%;
  margin-right: 2%;
}
.product .pro-main li a {
  display: flex;
  width: 100%;
  height: 100%;
}
.product .pro-main li a img {
  border-radius: 20px;
  box-shadow: 0 0 10px 0 rgba(123, 123, 123, 0.3);
  width: 100%;
  height: 100%;
}
.product .pro-main li a img:hover {
  box-shadow: 0 0 10px 0 rgba(7, 121, 196, 0.5);
}
@media screen and (max-width: 768px) {
  .product {
    padding-top: 20px !important;
    width: 100%;
    padding: 0 8px;
    margin-bottom: -90px;
  }
  .product .pro-top {
    display: none;
  }
  .product .pro-main {
    padding-left: 0;
    width: 100%;
    display: flex;
    justify-content: flex-start;
    align-items: center;
  }
  .product .pro-main li {
    width: 48%;
    margin-bottom: 4% !important;
  }
  .product .pro-main li:nth-child(3n-1) {
    margin: 0;
  }
  .product .pro-main li:nth-child(2n-1) {
    margin-right: 4%;
  }
  .product .pro-main li:nth-child(n+4) {
    margin-top: 0;
  }
  .product .pro-main li img {
    width: 331px;
    height: 331px;
  }
}
